Details on the various mount types available for Heatic 2+ Sensors and instructions for mounting on different surfaces, tailored to each sensor mode.

For general considerations and limitations when installing Heatic Sensors (Butlr's heat-based people sensors), refer to: Guidelines for Installing Heatic Sensors: Key Considerations and Limitations.

Types of Mounts

Overview

No Mount

Using Ceiling Mount

Using Wall Mount

Drop Rod Options

Attach to Previous-Gen Mounts

Using Adhesives (No-Drilling Option)

Installing Sensor/Mount

Overview

Mounting Traffic Sensor

Mounting Presence Sensor

Types of Mounts

Overview

Standard Mounts/Brackets (Butlr Made)

No Mount

Magnetic Attachment

Additional Disc Magnets for Edge Cases:

When attaching Heatic 2+ directly to a steel surface, there may be a slight gap (less than 1mm) between the built-in magnet on the back of the sensor and the mounting surface due to the design. While this situation is rare, for stronger magnetic attachment or when the surface has small or spotty magnetic areas, you can enhance the magnetic contact by assembling additional disc magnets on the back of the sensor. This increases the contact area and provides stronger magnetic strength.

Screw-In Mounting from the Back of the Sensor

Zip tie

Thread the zip tie through the zip tie holes on the sensor to tight sensor units to tubes, hanging fixtures, lighting, etc.

Using Ceiling Mount

Installation

Using Wall Mount

Installation:

Tamper-Proof Fastener

For enhanced security, use Thumb Nuts to prevent unauthorized removal of the sensors. These nuts firmly secure the sensors to the Wall Mount and Drop Rods.

Assembly:

Magnetic Wall Mount

Request a pre-assembled Magnetic Wall Mount from the fulfillment team as needed.

Drop Rod Options (For Ceilings Above 10.5 Feet / 3.2m)

Threaded Stud Specification: 3/8"-16.

Length Adjustable Drop Rod

Length Range Options:

• 0.5-1m
• 1-2m

Assembly:

Threaded Rod

For lengths shorter than 0.5 meters or longer than 2 meters, the 3/8" threaded rods are Available in various lengths for customizable installations.

Compatible threaded rod & beam clamp specs: 3/8"-16

Various rod lengths are available for sourcing.

Rod-To-Ceiling Options

Using beam clamps:

Using anchors:
 

Using mounting plate:

No drilling, adhesive solution:

1. Apply construction adhesive (recommended: Loctite PL Marine adhesive for indoor concrete, with a 600lb weight capacity for a 1.5" plate) to one side of the steel disc.
2. Allow the adhesive to cure for 24 hours (tack-free time is 20-30 minutes, and it does not emit volatile compounds).
3. Assemble the Disc Magnet with the Universal Joint and the rod.
4. Attach the Auto Vertical Alignment Length Adjustable Drop Rod to the steel disc.

Attach to Previous-Gen Mounts

Heatic 2+ is fully compatible with Heatic 1/2 mounts. Ensure:

• The mount's arrow matches the orientation of the arrow on Heatic 2+.
• The mount is securely attached to the sensor without gaps.

Using Adhesives (No-Drilling Option)

Adhesive mounting solutions are available for both Ceiling Mount and Wall Mount upon request. However, this method is generally not recommended due to the extended setting time required and the dependency of bonding strength on installation steps and surface conditions. Always consult the Butlr team before requesting adhesive solutions.

Adhesive solutions (recommended: Loctite PL Marine adhesive) are primarily used in the following cases:

Non-Drillable and Non-Magnetic Surfaces:
Aluminum
Glass
Decorative wood panels
Marble
Tile/ceramic
Concrete/brick

Specific Installation Challenges:
Situations where the sensor’s field of view (FOV) or PIR functionality might be obstructed.

Important Note: Proper installation is critical to ensure strong adhesion. Always follow the recommended steps provided by Butlr for optimal performance.

DO NOT use VHB only solution.
 

Install on Ceiling:

Install on Wall:

Adhesive Mount Removal:

1. Apply caulk remover gel (recommended: CAULK-BE-GONE® Latex Caulk Remover) around the mounting plate to soften the adhesive.
2. Press the scraper into the gap between the mounting plate and the surface, then slowly pry it off.
3. Apply more caulk remover gel to the remaining adhesive.
4. Scrape off the residue using the scraper.

Installing Sensor/Mount

Overview

Concrete, Brick, Stone, Drywall: Use M4 wall screws and anchors to secure the mount to the surface.

Wood: Use M4 screws and drill directly into the surface.

Ceiling Tiles, T-grid Ceilings, Metal Beams, or Other Magnetic Surfaces: Attach the Sensor directly to the magnetic surfaces.

Heatic 2+ Placement with Hive

For optimal mesh performance:

• Position the Hive’s gateway antenna so that it points toward the Heatic 2+ sensors.
• Ensure the PIR sensor on the Heatic 2+ faces away from the Hive.

Read more Cellular Hive (GWDSRSCL2) Installation Guide.

Mounting Traffic Sensor

Please install the sensor only at positions marked as “recommended” (😄) in the mounting diagram.
If you must install it at a non-recommended position (😑, 🙁, or ❌), submit a ticket to notify the Butlr support team after deployment.

You must report all the following “if-must” mountings:

• Installed more than 5 cm above the bottom of the door frame
• Distance from the wall (d) is outside the acceptable range (see d_min < d < d_max in the sections below)
• Not centered to the door
• Installed on double doors or overlapping doorlines
• Facing a reflective or glass surface within coverage area
• Partial door width uncovered (if there is absolutely no other option, or the client insists)
• Fire exit or storage door (even if rarely used) not covered (if client insists)

Wall Mounting

Open Entrance/Door Scenario

When wall-mounting a Traffic Sensor at an entrance with an always-open door or no door at all, the optimal mounting location is at the center of the open entrance. For single doors, mounting the sensor above the entrance, either at the sides or the center, is acceptable. For double doors or wide entrances, avoid installing sensors at the edges of the entrance, even if the coverage width seems sufficient.

Closed Door Scenario

When wall-mounting a Traffic Sensor at an entrance where the door typically remains closed, the preferred mounting location is on the door stop side (refer to the illustration below). If this is not feasible due to issues such as poor frame-per-second (fps) performance or mounting restrictions, mounting the sensor on the hinge side is acceptable. However, ensure that the sensor is installed according to the instructions provided below to prevent significant impact on detection accuracy.

Install at the door stop side (preferred)

Install at the door hinge side (not recommended unless absolutely necessary)

Mounting Height Limitations

In addition to the regular installation height vs. coverage width limitations (illustrated above), the distance (x) between the bottom of the Wall Mount and the door/entrance opening must also fall within a specific range to ensure optimal detection accuracy. The Heatic 2+ performs best when x = 5 cm or less. Do not install the sensor with x ≥ 10 cm, as this will significantly affect detection accuracy.

Ceiling Mounting

When ceiling-mounting the Heatic 2+ Traffic Mode Sensor near an entrance, the sensor's distance from the wall (d) must fall within a specific range for optimal performance:

d_min < d < d_max

Use the table below to determine d_min​ and d_max​ based on the "Height of the ceiling above the door opening" and the "Floor-to-ceiling height" at the installation location. Butlr internal teams and certified partners may also utilize the Google Sheet Calculator to generate the d range values.

Once mounting location is determined, use Studio (Butlr Install App) to preview sensor coverage by entering various installation heights.
 

Mounting Presence Sensor